User Manual - Page 2703

For AUTOCAD 2011.

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Anchors
Anchors create links between different objects. Anchors are often used to connect an object,
such as a column or a structural element, to a grid or layout curve. Anchors can also be used
to anchor architectural objects to each other, or to linework objects, like lines and circles.
Anchors
An anchor links an AEC object to another object or to a layout curve or grid.
You can create anchors between objects and also remove anchors from objects.
AEC objects can be anchored to each other, to AutoCAD objects like lines and
circles, or to layout curves or grids.
Automatic and user-defined anchors enable you to use anchors for many
different purposes.
Automatic and User-Defined Anchors
Automatic anchors are set by the program. Certain objects are by default anchored
to other objects. For example, doors and windows are usually anchored to walls.
Curtain wall units or window assemblies might be anchored to curtain walls.
Although these anchors are inserted automatically, when you place the objects
their behavior can differ slightly. For example, a door that is anchored to a wall
can be moved to an unconnected wall. The door cannot, however, be moved
outside a wall and stand alone. To do this, you must remove the anchor between
door and wall. The anchor of a column to a column grid behaves differently:
you can move the column inside the grid, but you cannot move the column to
another grid without first removing the anchor.
User-defined anchors are manual links that you can create between two objects.
Most anchors are used with layout curves, layout grids, or volumes. You can
also attach anchors to other AEC objects or AutoCAD objects.
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